<project>/
├── source/     # Original JS (downloaded, not modified)
├── env/        # Runtime environment
│   ├── env_core.js      # Copied from template, do not modify
│   ├── main.js          # Target JS copy (or sdk.js + bytecode.js)
│   ├── run.js           # Loader + environment stubs + test
│   └── sign.js          # Signature interface (encapsulated at last)
├── python/     # Verification scripts
└── docs/progress.md

const env = require('./env_core');
const _process = process; // init() will hide process, reserve reference in advance

// ① Build minimal stubs (get document/navigator/location from browser-stubs.md)
const fakeDocument = { /* ... */ };
const fakeNavigator = { /* ... */ };
const fakeLocation = { /* ... */ };

// ② Assemble window
const fakeWindow = {
    document: fakeDocument,
    navigator: fakeNavigator,
    location: fakeLocation,
    // ... supplement on demand
};
fakeWindow.window = fakeWindow;
fakeWindow.self = fakeWindow;
fakeWindow.top = fakeWindow;
fakeWindow.parent = fakeWindow;
fakeWindow.globalThis = fakeWindow;

// ③ Initialize (Node leak blocking + global mounting)
env.init({
    window: env.createProxy(fakeWindow, 'window', 0),
    document: env.createProxy(fakeDocument, 'document', 0),
    navigator: env.createProxy(fakeNavigator, 'navigator', 0),
    location: env.createProxy(fakeLocation, 'location', 0),
});

// ④ Additional global synchronization
// global.chrome = window.chrome;  // If needed

// ⑤ Load target JS
require('./main.js');

// ⑥ Test
console.log('Signature function:', typeof window.签名函数名);

Diagnostic report
├── [HANG] Process stuck/no output → Refer to references/anti-debug.md
│   ├── setInterval debugger infinite loop → hook setInterval to filter
│   ├── eval/Function dynamically generated debugger → hook eval + Function to strip
│   └── Synchronous while(true) → Locate source code, patch global in run.js
│
├── [ERRORS] → Must be fixed immediately
│   ├── TypeError: xxx is not a function → Supplement corresponding method
│   ├── xxx is not defined → Supplement global variable/constructor
│   └── Cannot read property of undefined → Supplement intermediate object
│
├── [UNDEFINED] → Process item by item
│   ├── First use evaluate_script to get real value from browser
│   ├── Also undefined in browser → Skip (marked as confirmed)
│   └── Has value in browser → Supplement to run.js (get standard writing from browser-stubs.md)
│
└── ERRORS = 0 && All UNDEFINED confirmed → Enter signature format verification
    ├── Signature length/prefix consistent with browser → Step 4
    └── Inconsistent signature → In-depth investigation
        ├── monitor() wraps key objects to track property access
        ├── Global error interception: process.on('uncaughtException')
        ├── Check item by item against references/node-detection.md
        └── No abnormalities in all external hooks → references/limitations.md

const env = require('./env_core');
// ... Environment construction (same as run.js) ...
require('./main.js');

module.exports = function sign(url, data) {
    // Call signature function, return result
    return window.签名函数名(url, data);
};